25G SFP28 Transceiver Module Multi Mode 850nm 100m SFP 25G SR S LC Duplex SFP Module with Cisco/Mikrotik/Ubiquiti Switch Module|Fiber Optic Equipments| - AliExpress
Cisco SFP-10/25G-CSR-S Compatible 10/25GBASE-SR SFP28 850nm 100m DOM LC MMF Optical Transceiver Module - FS Germany